Subframe Connectors 74-81 Camaro / Subframe Connectors 74-81 Camaro / Firebird . Thank you for your

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Text of Subframe Connectors 74-81 Camaro / Subframe Connectors 74-81 Camaro / Firebird . Thank you for your

  • 4013 74-81 Camaro / Firebird

    Hotchkis Performance LLC. 1

    Please read the following key points before installing this kit. 1 – Before performing the subframe connector installation, the vehicle must be completely assembled with all body and component parts installed (e.g. fenders, hood, quarterpanels, trunk, full interior, engine, glass, etc.). Basically, the subframe connectors should be one of the last components installed on your vehicle. Reason being is you want the vehicle settled with all of it’s own final weight. The car’s body is always in constant tension, with forces pushing or pulling within the chassis & body. You want to make sure these forces don’t change after you install the subframe connectors. For example, if you installed subframe connectors before installing the engine and body panels this may result in having misaligned fenders, door panels and/or hood later on. The car must be in its final state before the subframe connectors are installed. 2 – The subframe connectors must be installed on an alignment rack or floor ramps (all 4 wheels). The vehicle must be sitting on its wheels at ride height in order to install the subframe connectors. Do not use a two-post lift, as this will load the chassis/body in the wrong points causing the chassis to tweak.

  • 4013 74-81 Camaro / Firebird

    Hotchkis Performance LLC. 2

    4013 Subframe Connectors 74-81 Camaro / Firebird

    Thank you for your purchase from our new line of F-Body parts. Please call us at (877) 4NO - ROLL if you have any questions

    regarding the service or installation of your Hotchkis products. Subframe Connectors

    Your new subframe connectors will increase the overall rigidity of your chassis and improve handling and response. These engineered components connect the rear frame rails with the front subframe to simulate a complete full frame chassis.


    70-74 F-body Connectors Shown

    Notes The subframe connector is essentially a Weld-In component, effectively connecting itself to the front subframe and rear frame rails. However, you may choose to bolt-in the front connection to allow front subframe removal if need be. Hardware for the bolt-in procedure is included.


    Before You Start

    The installation of these subframe connectors will require you to grind and weld. It is recommended that a trained professional install this product. Always wear eye protection when grinding or welding.


    Please read the entire manual before starting. All images will depict the driver side installation.

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    Hotchkis Performance LLC. 3

    1. Raise Vehicle

    It is best to install the subframe connectors at ride height. To do this properly, please use a 4-Post lift or alignment rack. Disconnect the negative battery cable.

    2. Prepare Subframe Pieces for Welding

    Subframe pieces come fully powder coated so you will want to first prep them for the welding process. Sand the rear mounts of the subframe connector. Make sure you file inside the rosette weld holes also.

    3. Remove Screws Remove the screws that hold the brake/fuel lines against the body …

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    Hotchkis Performance LLC. 4

    4. Mark Area to Be Sanded

    Position the subframe into place and mark the area in the rear that will need to be sanded down to prepare the surface for welding.

    5. Remove Old Bushings

    Unscrew and remove all old bushing pieces. You will not need these pieces any longer, so you are free to discard them if you wish.

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    Hotchkis Performance LLC. 5

    6. Install New Bushings

    Place the thin washer and top bushing on top of the frame and then slide the sleeve into place. Install the bottom bushing and thick washer next, slide the supplied bolt up and tighten.

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    Hotchkis Performance LLC. 6

    7. Prepare for Welding

    Use a screw jack to hold the subframe connector in place. Make sure you protect any lines that might possibly be in the line of fire of the welding process.

    8. Weld Frame

    Weld the subframe into place using the pre-drilled holes for rosette welds and also along the edges of the subframe that come in contact with the frame.

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    Hotchkis Performance LLC. 7

    9. Paint and Replace Lines

    After welds have cooled down, spray paint any areas exposing raw metal to protect from rusting. Then put all lines back into place and tighten.

    10. Drill Holes & Install Bolts

    On the front end of the subframe connector, mark the center of each hole and drill a hole through the frame. Use a ½” drill bit to get the hole in the frame to the same size as the hole in the connector, big enough for the supplied bolts to fit. Install bolts and fully tighten. Passenger Side:

  • 4013 74-81 Camaro / Firebird

    Hotchkis Performance LLC. 8

    Note: The Driver Side does not have this Line Tab. Mark & drill the hole in the same manner as the rest of the holes.

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    Hotchkis Performance LLC. 9

    11. Double Check Double check all of the hardware and you are finished.

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    Hotchkis Performance LLC. 10

    Hotchkis Performance LLC Return Policy & Limited Warranty

    Effective December 1, 2010 all Hotchkis products must be registered to qualify for warranty at or via the mail-in warranty card, included with the product, within 30 days of the original purchase date. IMPORTANT: This warranty supersedes all other warranties included with this product. Return Policy We want you to be completely satisfied with your Hotchkis Performance product. For products, presenting signs of shipping damage please contact the freight carrier immediately. All our products are guaranteed to be free from manufacturer’s defects. If your order arrives with a manufacture defect, please contact our Customer Service Department at (562) 907-7757. You will be assigned a Returned Goods Authorization Number (RGA). The package you return must show the RGA on the outside of the package, include the original invoice and be shipped prepaid to our facility. The product has to be unused and in its original packaging materials. Exchanges or refunds made after 30 days will be subject to a 20% restocking charge. If you purchased your Hotchkis Performance product from an authorized dealer, you are still covered by this return policy. All returns however, should be made to your dealer, not to Hotchkis Performance directly. Limited Warranty Hotchkis Performance offers a Limited Warranty against defects in materials and workmanship for the term of 36 months (3 years) from the date of purchase of this product. This Warranty only applies to the original retail purchaser who retains ownership of the vehicle on which the product was originally installed. If the product is determined to be defective, Hotchkis Performance will repair, replace or refund the purchase price of the defective product at Hotchkis Performance's sole discretion, which shall fully satisfy and discharge any and all warranty claims. Any repaired or replaced product will be returned to the sender excluding the cost of freight. Products must be registered to qualify for warranty at

    or via the mail-in warranty card, included with the product, within 30 days of the original purchase date.

    Exclusions from Warranty Items offered but not manufactured by Hotchkis Performance are warranted according to the manufacturer's terms and are not covered by this limited warranty. Hotchkis Performance shall not be responsible for any labor, removal, installation, re-installation or maintenance costs. This warranty does not cover the cosmetic finish or plating of any product or any normal wear and tear to any product including, but not limited to bushings, brackets, end-links, hardware, steering components, shocks or springs. In addition, this warranty does not apply to any products that have been: 

    Improperly installed or installed by someone other than a qualified, licensed auto mechanic experienced in the installation and removal of suspension products;

    Improperly serviced, misused, or modified, altered or subjected to abuse, negligence, accident or collision;

     Installed in any vehicle that has been modified;

    Installed on any vehicle that has carried loads in excess of automobile manufacturer suggested weight limits; or

    Installed on any vehicle that has been subject to abnormal or excessive use, including rallying, racing, or racing-type activities or off-road use.

    Limitation of Warranty This limited warranty is the entire and only warranty for the products and may not be modified o